Whole Cell Test 2024

Front

What is the structure of the cell membrane?

Back

The cell membrane is composed of a phospholipid bilayer with hydrophilic (polar) heads facing outward and hydrophobic (nonpolar) tails facing inward.

Front

What is the primary function of ribosomes in a cell?

Back

Ribosomes are responsible for making proteins.

Front

True or False: Stem cells can differentiate into various types of specialized cells.

Back

TRUE

Front

What structures are found in plant cells but not in animal cells?

Back

Chloroplasts (for photosynthesis) and central vacuoles (for large storage area) are found in plant cells but not in animal cells.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process where particles like glucose move from high to low concentration through integral proteins.

Front

Define phospholipid bilayer.

Back

A phospholipid bilayer is a double layer of phospholipids that makes up the cell membrane, with hydrophilic heads facing outward and hydrophobic tails facing inward.

Front

What is the role of chloroplasts in plant cells?

Back

Chloroplasts are responsible for photosynthesis, converting sunlight into energy.

Front

What is the function of the central vacuole in plant cells?

Back

The central vacuole serves as a large storage area for water, nutrients, and waste products.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy and moves substances along their concentration gradient.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.